I've seen a few occasions where an answer exceeds the character limit isn't complete, and people either add on to their answer on different answers on the same question, or in comments on the answer. Which should we do? Is there one that the mods/PM would rather?
Do you have an example? If an answer is too long then usually it can be cut down without losing information. Try to get to the point and don't add tons of "waffle". That's sort of what the Pokebase is about.
If someone is asking for a big long list of stuff then it's better to link to another page if possible. Otherwise it's fine to use the comments. BTW the character limit was increased a while back to 12000 characters instead of 8000.